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RJKD
 Post subject: Restoration challenge (SOLVED)
PostPosted: Tue May 10, 2016 5:16 am  (#1) 
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GIMP Version: 2.8.14
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Hi guys, I've got this Imagevery old, unclear image of hand drawn, (the original got lost), any suggestion as to how I could restore, clean up and/or sharpen would be gratefully appreciated - in Peace RJKD

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Last edited by RJKD on Tue Jun 21, 2016 3:16 pm, edited 1 time in total.

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Wallace
 Post subject: Re: Restoration challenge
PostPosted: Tue May 10, 2016 5:05 pm  (#2) 
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Location: Native to NYC living in Arizona, Gimp 2.8 & 2.10, Win 11 PC.
You can try duplicating the image and applying Image Mode>Multiply.
Doing this will darken the lines.
Duplicating this layer and playing with the layers opacity, can refine it a bit more.
Using, Color>Curves can also help to improve the lines visibility.

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RJKD
 Post subject: Re: Restoration challenge
PostPosted: Wed May 11, 2016 11:03 am  (#3) 
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Thanx Wallace, I'll get back to you with this, much appreciated - in Peace

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Wallace
 Post subject: Re: Restoration challenge
PostPosted: Thu May 12, 2016 3:23 am  (#4) 
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RJKD wrote:
Thanx Wallace, I'll get back to you with this, much appreciated - in Peace

:bigthup

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"A wise man learns more from a foolish question than a fool can learn from a wise answer"
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animicule
 Post subject: Re: Restoration challenge
PostPosted: Mon Jun 06, 2016 4:41 pm  (#5) 
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I liked the lines, but couldn't get the faint ones to stand out, so I just had fun.


Attachments:
restoremod.png
restoremod.png [ 5.17 MiB | Viewed 3757 times ]
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RJKD
 Post subject: Re: Restoration challenge
PostPosted: Tue Jun 21, 2016 3:15 pm  (#6) 
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Beautiful animicule, however, I think I'm asking to much to restore, it's a scan of a photo of 34yr old sketch, the original got lost along the way - in Peace RJKD

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bobzchemist
 Post subject: Re: Restoration challenge (SOLVED)
PostPosted: Wed Jun 22, 2016 12:31 pm  (#7) 
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Duplicate layer.
Color to alpha - white.
Duplicate that layer until all the detail shows up
You could clean this up further by removing yellow/orange.

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bobzchemist
 Post subject: Re: Restoration challenge (SOLVED)
PostPosted: Wed Jun 22, 2016 12:37 pm  (#8) 
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I tried using threshold to do this, but it didn't work. Any hints why?

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animicule
 Post subject: Re: Restoration challenge (SOLVED)
PostPosted: Wed Jun 22, 2016 3:08 pm  (#9) 
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I am not sure why threshold did not help much.
I am wondering if changing the "color set" from RGB to something with less colors
might help
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animicule
 Post subject: Re: Restoration challenge (SOLVED)
PostPosted: Thu Jun 23, 2016 9:13 am  (#10) 
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Used levels and got black (luminosity masking), changed to blue channel and more
details appeared. xcf file too large to post. you could probably clean this up a bit and
add from the original by hand.


Attachments:
Line Drawing.png
Line Drawing.png [ 981.65 KiB | Viewed 3614 times ]
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RJKD
 Post subject: Re: Restoration challenge (SOLVED)
PostPosted: Thu Jun 23, 2016 1:26 pm  (#11) 
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Thanx a million guys, really appreciate your suggestions - in Peace RJKD

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